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Answer to Question #43153 in Databases | SQL | Oracle | MS Access for Rohit

Question #43153
Consider the relations
EMPLOYEE(emp#, name)
ASSIGNED_TO(project#, emp#)
PROJECT(project#, project_name, chief)
Express the following queries in Relational Algebra
(i) Get details of employee working on both comp354 and comp345 project numbers.
(ii)Find the employee number of employee who do not work on project comp678

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